Advertisements
Advertisements
प्रश्न
On which factors does the purification of metals depend?
उत्तर
The purification depends upon the following:
- Nature of metal.
- Nature of impurities present in the metal.
- The purpose for which metal is to be used.
APPEARS IN
संबंधित प्रश्न
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.
Identify A and B and give their reactions with dil HCL and dil H2SO4 ?
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.
Give the effect of heat on their ?
oxides
`HgS + O_2` ..................
How is it removed?
Complete the following flow chart and answer the questions below:
i) In which method pine oil is used?
ii) Explain what method of concentration in brief.
Explain with reason:
Why is powdered coke sprinkled on top of the electrolyte?
Match the columns.
Group A | Group B |
1. ZnS | a) Copper Sulphide |
2. HgS | b) Bauxite |
c) Cinnabar | |
d) Zinc blend |
Observe the figure and name and explain in brief the following method:
Chemical formula of rust is ______
Name the process that is employed to refine aluminium.